Home / 31,165.68-46,720.25-12,441.78

Finding the Fourth Proportional to 31,165.68, 46,720.25 and 12,441.78

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Solution

The fourth proportional to 31,165.68, 46,720.25 and 12,441.78 is: 18,651.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,165.68 : 46,720.25 = 12,441.78 : x
  2. Step 2: Convert to fraction form
    31,165.68/46,720.25 = 12,441.78/x
  3. Step 3: Cross multiply
    31,165.68x = 46,720.25 × 12,441.78
  4. Step 4: Simplify right side
    31,165.68x = 581,283,009.84
  5. Step 5: Solve for x
    x = 581,283,009.84/31,165.68
  6. Step 6: Final answer
    x = 18,651.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.